Module bvol

Bounding volumes and culling primitives.

The initial implementation here was gleaned from treeculler, which unfortunately cannot compile to SPIR-V because of its use of u8.

Also, here we use glam, whereas treeculler uses its own internal primitives.

More resources:

• https://fgiesen.wordpress.com/2010/10/17/view-frustum-culling/
• http://old.cescg.org/CESCG-2002/DSykoraJJelinek/
• https://iquilezles.org/www/articles/frustumcorrect/frustumcorrect.htm

Structs

Aabb

Axis aligned bounding box.

BoundingBox

Bounding box consisting of a center and three half extents.

BoundingSphere

Bounding sphere consisting of a center and radius.

Frustum

Six planes of a view frustum.

Traits

BVol

Bounding volume trait.

Functions

dist_bpp

Calculates distance between plane and point

intersect_planes

Find the intersection point of three planes.

mi_vertex

Calculates the most inside vertex of an AABB.

mo_vertex

Calculates the most outside vertex of an AABB.

normalize_plane

Normalize a plane.